(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Biology

Which bacteria fixes nitrogen in the soil?

State the differences between pasteurization and sterilization.

Is tinned and sealed food always safe to eat? Give reasons in support of your answer.

Study the diagram given below and then answer the questions that follow:

Briefly describe how nitrogen of the atmosphere is converted to nitrates by leguminous plants.

Study the diagram given below and then answer the questions that follow:

Name the bacterium that converts

(i) ammonium compounds to nitrites

(ii) nitrites to nitrates

Study the diagram given below and then answer the questions that follow:

State how the nitrates in the soil get converted to nitrogen of the atmosphere.

Study the diagram given below and then answer the questions that follow:

Role of plants and animals in the formation of ammonium compounds.

Name the parts of the skeleton where the following are located:

transverse process, glenoid cavity, shoulder-blade, acetabulum

Name any two parts of your body where the supporting skeleton is made of cartilage instead of bone.

What is the difference between a true rib and a floating rib?

Sweat glands are situated in:

Name any one modified sweat gland and any one modified sebaceous gland.

Name the skin glands which when inflamed cause acne.

State any two functions of the mammalian skin other than those concerned with heat regulation.

Name any two glands found in the human skin. State their functions.

Draw a labelled diagram of the generalized vertical section of the mammalian skin.

Given below is a diagrammatic sketch of the vertical section of the human skin.

Label the parts numbered from 1 to 9.

Given below is a diagrammatic sketch of the vertical section of the human skin.

Part 4 may add to one's good appearance or the "figure". State one example of this function which may be common to both men and women.

''Abnormally, large numbers of WBCs in the blood are usually an indication of some infection in our body''. Comment on the statement.

Given below is a scheme of classifying immunity against human diseases. Fill up the types of immunity in the blanks 1-9.